Yakima Basin Steelhead Kelt Reconditioning
Columbia River steelhead are iteroparous (able to spawn multiple times). However, as post-spawned steelhead (kelts) attempt to migrate downstream to return to the ocean, their survival is adversely affected by major dams. Therefore, an innovative approach to effectively increasing abundance and productivity of steelhead populations is to capitalize on their inherent iteroparity by reconditioning kelts.
Renchler's Meadow Project
Renchler’ Meadow is an important water storage area for Dry Creek, a tributary of Satus Creek, both of which support culturally important fish species. Meadows are extremely important for absorbing and slowly releasing rainfall and snowmelt to maintain summer base flows in streams. The meadows themselves support culturally important roots that are gathered for food, medicinal and ceremonial purposes by the Yakama people. Renchler's Meadow was impacted by a variety of human related activities in the past, which ultimately caused the stream channel to erode throughout the meadow.
Yakima Basin steelhead population monitoring
This project expands research, monitoring, and evaluation (RM&E) activities conducted by the co-managers in the Yakima Basin (Yakama Nation and Washington Department of Fish and Wildlife-WDFW) to better evaluate viable salmonid population (VSP) parameters (abundance, productivity, spatial structure, and diversity) for Yakima River steelhead (Oncorhynchus mykiss) populations. It was developed to fill critical monitoring gaps identified in the 2009 Columbia Basin monitoring strat
Yakima Klickitat Fisheries Project (YKFP)
To restore sustainable and harvestable populations of salmon, steelhead, and other at-risk species, the YKFP is evaluating all stocks historically present in the Yakima and Klickitat Subbasins and, using principles of adaptive management, is applying a combination of habitat protection and restoration, as well as hatchery supplementation or reintroduction strategies to address limiting factors.
Trees Used by White-headed Woodpeckers for Sap Feeding
The White-headed Woodpecker (Dryobates albolarvatus) is uncommon and non-migratory throughout its geographic range in Washington, where it inhabits forests dominated by ponderosa pine (Pinus ponderosa). In the northern part of their range, White-headed Woodpeckers rely on ponderosa pine seeds as a fall and winter food resource. Although previous research revealed that White-headed Woodpeckers do feed on tree sap in California and Oregon, the characteristics of trees used for sap feeding have not been described in detail.
Assessing Annual Survival of White-headed Woodpeckers in Managed Ponderosa Pine Stands
In Washington, the White-headed Woodpecker (Dryobates albolarvatus) is listed as a species of concern because of its association with old-growth ponderosa pine (Pinus ponderosa) forests. In 2011, we began a color-marking study of White-headed Woodpeckers in managed stands dominated by ponderosa pine. We captured adult birds with mist nets, hoop nets, and noose traps at nest cavities and water features. We did this by using call playbacks in conjunction with a taxidermy mounted female White-headed Woodpecker.
Woodpecker Nest-site Characteristics in Managed Ponderosa Pine Stands
Interior ponderosa pine (Pinus ponderosa) forests of the Pacific Northwest have changed dramatically since the time of European settlement. As a result of decades of fire suppression and timber management that focused on selective removal of large-diameter trees, ponderosa pine forests today have high densities of small diameter trees and low densities of large diameter trees and snags, as well as an encroachment of shade tolerant tree species.
Characteristics of Forest Stands Used by White-headed Woodpeckers for Nesting
The White-headed Woodpecker (Dryobates albolarvatus) is a primary excavator that occurs in pine- (Pinus spp.) dominated habitats throughout its geographic distribution. Throughout the interior Pacific Northwest, the White-headed Woodpecker is historically associated with large-diameter ponderosa pine (Pinus ponderosa) forests. Historically these pine forests were maintained by frequent fires that occurred every 5–15 years. Old trees (>150 years) in these historic forests were 40–91 cm dbh and ranged in density from 19 to 49 per hectare.
Western Bluebird Nest Survival in Managed Ponderosa Pine Forests
The Western Bluebird (Sialia mexicana) is a secondary-cavity-nesting thrush that breeds in semi-open habitats throughout much of western North America. Historically, the Western Bluebird was more common in Washington west of the Cascade crest than to the east, but today it is more abundant in the eastern Cascades.
Woodpecker Nest Survival in Managed Ponderosa Pine Forests
Woodpeckers are considered keystone species because of their broad effects on other species. In nesting and foraging, woodpeckers create cavities and excavations that other species use, they aid in controlling forest insects, and they may help in dispersing spores of fungi that are agents of decay. Despite the importance of woodpeckers to forested ecosystems, few studies have examined metrics of woodpecker demography such as reproductive success or nest survival or have investigated the associations of habitat characteristics with these or related metrics.